@InProceedings{SeluchiGatr:2002:PrCoSo,
               author = "Seluchi, Marcelo Enrique and Gatreaud, Rene D.",
          affiliation = "{CPTEC-INPE-Cachoeira Paulista-12630-000-SP-Brasil}",
                title = "Previs{\~a}o da convec{\c{c}}{\~a}o sobre o Altiplano Sul 
                         Americano utilizando o modelo regional ETA/CPTEC",
            booktitle = "Anais...",
                 year = "2002",
                pages = "3687--3691",
         organization = "Congresso Brasileiro de Meteorologia, 12.",
             keywords = "previsao, modelo regional ETA.",
             abstract = "In this work lhe ability of the Eta/CPTEC regional model to 
                         forecast precipitation over the South Arnerican Plateau (known as 
                         Altiplano) during the surnrner 1999-2000 is analyzed, with 
                         emphasis in its convective and episodic character. To this purpose 
                         the operational model outputs were compared with observed 
                         precipitation in some synoptic stations during the period December 
                         1999 to February 2000. However due to the scarce number of 
                         observations the long-wave outcoming radiation (OLR) fields 
                         constituted the rnain observed variable. The forecasted 
                         precipitation captures the most important features of the spatial 
                         and temporal variability of convection over Altiplano. The 
                         24-hours previsions have a greater accuracy to predict the spatial 
                         distribution, whereas the 48-hours forecasts have a greater 
                         success in reproducing the episodic character ofthe precipitation. 
                         The temporal variability of the mixing ratio at the 550 hPa leveI 
                         over the Altiplano has a very goro coherence with the convection 
                         variability. The success of the Eta/CPTEC to forecast the mixing 
                         ratio on the Altiplano indicates that in general this model is 
                         able to reproduce the humidity transport from the low-levellands 
                         to the central Andes. This fact was confirrned through the 
                         anaIysis of the wind field near the surface during rainy and dry 
                         episodes.",
  conference-location = "Foz do Iguacu",
      conference-year = "4-9 ago.",
           copyholder = "SID/SCD",
             language = "pt",
         organisation = "SBMET",
           targetfile = "Seluchi_Previsao da conveccao.pdf",
        urlaccessdate = "08 maio 2024"
}